EP3818730A4 - Energy-ratio signalling and synthesis - Google Patents

Energy-ratio signalling and synthesis Download PDF

Info

Publication number
EP3818730A4
EP3818730A4 EP19831037.7A EP19831037A EP3818730A4 EP 3818730 A4 EP3818730 A4 EP 3818730A4 EP 19831037 A EP19831037 A EP 19831037A EP 3818730 A4 EP3818730 A4 EP 3818730A4
Authority
EP
European Patent Office
Prior art keywords
synthesis
energy
signalling
ratio
ratio signalling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19831037.7A
Other languages
German (de)
French (fr)
Other versions
EP3818730A1 (en
Inventor
Tapani PIHLAJAKUJA
Arto Lehtiniemi
Antti Eronen
Lasse Laaksonen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Technologies Oy
Original Assignee
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of EP3818730A1 publication Critical patent/EP3818730A1/en
Publication of EP3818730A4 publication Critical patent/EP3818730A4/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
EP19831037.7A 2018-07-03 2019-07-01 Energy-ratio signalling and synthesis Pending EP3818730A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862693477P 2018-07-03 2018-07-03
PCT/FI2019/050517 WO2020008112A1 (en) 2018-07-03 2019-07-01 Energy-ratio signalling and synthesis

Publications (2)

Publication Number Publication Date
EP3818730A1 EP3818730A1 (en) 2021-05-12
EP3818730A4 true EP3818730A4 (en) 2022-08-31

Family

ID=69059396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19831037.7A Pending EP3818730A4 (en) 2018-07-03 2019-07-01 Energy-ratio signalling and synthesis

Country Status (3)

Country Link
US (1) US11096002B2 (en)
EP (1) EP3818730A4 (en)
WO (1) WO2020008112A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220406318A1 (en) * 2019-10-30 2022-12-22 Dolby Laboratories Licensing Corporation Bitrate distribution in immersive voice and audio services
GB2608406A (en) * 2021-06-30 2023-01-04 Nokia Technologies Oy Creating spatial audio stream from audio objects with spatial extent
GB2615323A (en) * 2022-02-03 2023-08-09 Nokia Technologies Oy Apparatus, methods and computer programs for enabling rendering of spatial audio

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110200196A1 (en) * 2008-08-13 2011-08-18 Sascha Disch Apparatus for determining a spatial output multi-channel audio signal
US20120314876A1 (en) * 2010-01-15 2012-12-13 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information
US20140249827A1 (en) * 2013-03-01 2014-09-04 Qualcomm Incorporated Specifying spherical harmonic and/or higher order ambisonics coefficients in bitstreams
GB2549532A (en) * 2016-04-22 2017-10-25 Nokia Technologies Oy Merging audio signals with spatial metadata
GB2554446A (en) * 2016-09-28 2018-04-04 Nokia Technologies Oy Spatial audio signal format generation from a microphone array using adaptive capture

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2800401A1 (en) * 2013-04-29 2014-11-05 Thomson Licensing Method and Apparatus for compressing and decompressing a Higher Order Ambisonics representation
CN105992120B (en) * 2015-02-09 2019-12-31 杜比实验室特许公司 Upmixing of audio signals
GB2551780A (en) * 2016-06-30 2018-01-03 Nokia Technologies Oy An apparatus, method and computer program for obtaining audio signals
US10075802B1 (en) * 2017-08-08 2018-09-11 Qualcomm Incorporated Bitrate allocation for higher order ambisonic audio data

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110200196A1 (en) * 2008-08-13 2011-08-18 Sascha Disch Apparatus for determining a spatial output multi-channel audio signal
US20120314876A1 (en) * 2010-01-15 2012-12-13 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information
US20140249827A1 (en) * 2013-03-01 2014-09-04 Qualcomm Incorporated Specifying spherical harmonic and/or higher order ambisonics coefficients in bitstreams
GB2549532A (en) * 2016-04-22 2017-10-25 Nokia Technologies Oy Merging audio signals with spatial metadata
GB2554446A (en) * 2016-09-28 2018-04-04 Nokia Technologies Oy Spatial audio signal format generation from a microphone array using adaptive capture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020008112A1 *

Also Published As

Publication number Publication date
WO2020008112A1 (en) 2020-01-09
US20200015028A1 (en) 2020-01-09
EP3818730A1 (en) 2021-05-12
US11096002B2 (en) 2021-08-17

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